Datasheet ADE7759 (Analog Devices) - 4

ADE7759–SPECIFICATIONS (continued) Parameter Spec Unit Test Conditions/Comments
REFERENCE INPUT REFIN/OUT Input Voltage Range 2.6 V max 2.4 V + 8% 2.2 V min 2.4 V – 8% Input Capacitance 10 pF max ON-CHIP REFERENCE Nominal 2.4 V at REFIN/OUT Pin Reference Error ±200 mV max Current Source 10 mA max Output Impedance 4 kW min Temperature Coefficient 20 ppm/∞C typ CLKIN Note All Specifications CLKIN of 3.579545 MHz Input Clock Frequency 4 MHz max 1 MHz min LOGIC INPUTS RESET, DIN, SCLK, CLKIN, and CS Input High Voltage, VINH 2.4 V min DVDD = 5 V ± 5% Input Low Voltage, VINL 0.8 V max DVDD = 5 V ± 5% Input Current, I ± IN 3 mA max Typically 10 nA, VIN = 0 V to DVDD Input Capacitance, CIN 10 pF max LOGIC OUTPUTS SAG and IRQ Open Drain Outputs, 10 kW pull-up resistor Output High Voltage, VOH 4 V min ISOURCE = 5 mA Output Low Voltage, VOL 0.4 V max ISINK = 0.8 mA ZX and DOUT Output High Voltage, VOH 4 V min ISOURCE = 5 mA Output Low Voltage, VOL 0.4 V max ISINK = 0.8 mA CF Output High Voltage, VOH 4 V min ISOURCE = 5 mA Output Low Voltage, VOL 1 V max ISINK = 7 mA POWER SUPPLY For Specified Performance AVDD 4.75 V min 5 V – 5% 5.25 V max 5 V + 5% DVDD 4.75 V min 5 V – 5% 5.25 V max 5 V + 5% AIDD 3 mA max Typically 2.0 mA DIDD 4 mA max Typically 3.0 mA NOTES 1See Terminology section for explanation of specifications. 2See plots in Typical Performance Characteristics. 3See Analog Inputs section. Specifications subject to change without notice. –4– REV. A Document Outline FEATURES GENERAL DESCRIPTION FUNCTIONAL BLOCK DIAGRAM TABLE OF CONTENTS SPECIFICATIONS TIMING CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS ORDERING GUIDE PIN CONFIGURATION PIN FUNCTION DESCRIPTIONS TERMINOLOGY MEASUREMENT ERROR PHASE ERROR BETWEEN CHANNELS POWER SUPPLY REJECTION ADC OFFSET ERROR GAIN ERROR GAIN ERROR MATCH Typical Performance Characteristics Test Circuits ANALOG INPUTS di/dt CURRENT SENSOR AND DIGITAL INTEGRATOR ZERO CROSSING DETECTION LINE VOLTAGE SAG DETECTION Sag Level Set POWER SUPPLY MONITOR INTERRUPTS Using the ADE7759 Interrupts with an MCU Interrupt Timing TEMPERATURE MEASUREMENT ANALOG-TO-DIGITAL CONVERSION Antialias Filter ADC Transfer Function Reference Circuit CHANNEL 1 ADC Channel 1 ADC Gain Adjust Channel 1 Sampling CHANNEL 1 AND CHANNEL 2 WAVEFORM SAMPLING MODE CHANNEL 2 ADC Channel 2 Sampling PHASE COMPENSATION ACTIVE POWER CALCULATION ENERGY CALCULATION Integration Time under Steady Load POWER OFFSET CALIBRATION ENERGY-TO-FREQUENCY CONVERSION LINE CYCLE ENERGY ACCUMULATION MODE CALIBRATING THE ENERGY METER Calculating the Average Active Power Calibrating the Frequency at CF Energy Meter Display CLKIN FREQUENCY SUSPENDING THE ADE7759 FUNCTIONALITY APPLICATION INFORMATION SERIAL INTERFACE Serial Write Operation Serial Read Operation CHECKSUM REGISTER REGISTER DESCRIPTIONS Communications Register Mode Register (06H) Interrupt Status Register (04H) Reset Interrupt Status Register (05H) CH1OS Register (08H) OUTLINE DIMENSIONS Revision History